Semiconductor light emitting device and fabricating method thereof

ABSTRACT

A semiconductor light emitting device including a substrate, a plurality of semiconductor light emitting units and a plurality of non-conductive walls is provided. The semiconductor light emitting device is disposed on the substrate in an array. Each of the semiconductor light emitting units has a first electrode and a second electrode opposite to the first electrode. Each of the semiconductor light emitting units is electrically connected to the substrate through the first electrode, and the semiconductor light emitting units are electrically connected together to a conducting layer through the second electrodes. The semiconductor light emitting units have different emission colors. The non-conductive walls are disposed between adjacent semiconductor light emitting units, to separate the semiconductor light emitting units. A fabricating method of semiconductor light emitting device is also provided.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims the priority benefits of U.S. provisionalapplication Ser. No. 62/103,578, filed on Jan. 15, 2015 and Taiwanapplication serial no. 104120507, filed on Jun. 25, 2015. The entiretyof each of the above-mentioned patent applications is herebyincorporated by reference herein and made a part of this specification.

TECHNICAL FIELD

The disclosure relates to a semiconductor light emitting device and afabricating method thereof.

BACKGROUND

With the progress in photoelectric technology, many photoelectricelements are miniaturized. In recent years, a variety of micro-displaytechnology has also been developed. Because of the breakthrough withrespect to the sizes of light emitting diodes (LED), micro-LED displaythat is fabricated by arranging light emitting diodes in an array isdrawing more and more attention. A micro-LED display is an active lightemitting device display, which not only provides contrast and energyconsumption comparable to an organic light emitting diode (OLED) displaybut has an absolute advantage in reliability and lifespan. Therefore,the micro-LED display has great potential and is very likely to becomethe mainstream display technology for mobile communication and Internetof Things (IoT) wearable electronic products in the future.

The micro-LED display is formed by disposing light emitting diodes in anarray on a circuit board to form pixels for projecting or displayingimages. During the fabrication of the micro-LED display, it may be toarrange multiple light emitting diodes on the circuit board and at thesame time align the light emitting diodes with predetermined positionson the circuit board. When light emitting diodes with different colorsare used to achieve color display or even full-color display, how toachieve fast packaging and accurate alignment is an important issue.

SUMMARY

A semiconductor light emitting device according to an embodiment of thedisclosure includes a substrate, a plurality of semiconductor lightemitting units, and a plurality of non-conductive walls. Thesemiconductor light emitting units are disposed on the substrate to forman array, and each of the semiconductor light emitting units has a firstelectrode and a second electrode opposite to each other. Each of thesemiconductor light emitting units is electrically connected with thesubstrate through the first electrode, and the semiconductor lightemitting units are electrically connected together to a conductive layerthrough the second electrodes. Moreover, the semiconductor lightemitting units have different emission colors. The non-conductive wallsare disposed between the adjacent semiconductor light emitting units toisolate the semiconductor light emitting units.

A fabricating method of a semiconductor light emitting device accordingto an embodiment of the disclosure includes disposing a plurality ofnon-conductive walls on a substrate. An alignment position is formedbetween every two adjacent non-conductive walls. A plurality ofsemiconductor light emitting units on a first carrier board arerespectively aligned to the alignment positions. The semiconductor lightemitting units are divided into a plurality of groups. The semiconductorlight emitting units in one of the groups are dissociated from the firstcarrier board. Thus, the semiconductor light emitting units in the groupfall into the corresponding alignment positions due to gravity. Each ofthe semiconductor light emitting units is electrically connected withthe substrate through a first electrode. A conductive layer is formed onthe semiconductor light emitting units. Accordingly, the semiconductorlight emitting units are electrically connected together to theconductive layer through second electrodes.

A fabricating method of a semiconductor light emitting device accordingto an embodiment of the disclosure includes disposing a magnetic deviceon a side of a substrate. A plurality of non-conductive walls aredisposed on another side of the substrate opposite to the magneticdevice. An alignment position is formed between every two adjacentnon-conductive walls. A plurality of semiconductor light emitting unitson a first carrier board are respectively aligned to the alignmentpositions. The semiconductor light emitting units are divided into aplurality of groups. The semiconductor light emitting units in one ofthe groups are dissociated from the first carrier board. Thus thesemiconductor light emitting units of the group and the magnetic devicemagnetically attract each other, making the semiconductor light emittingunits fall into the corresponding alignment positions. Each of thesemiconductor light emitting units is electrically connected with thesubstrate through a first electrode. A conductive layer is formed on thesemiconductor light emitting units. Accordingly, the semiconductor lightemitting units are electrically connected together to the conductivelayer through second electrodes.

Several exemplary embodiments accompanied with figures are described indetail below to further describe the disclosure in details.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings are included to provide further understanding,and are incorporated in and constitute a part of this specification. Thedrawings illustrate exemplary embodiments and, together with thedescription, serve to explain the principles of the disclosure.

FIG. 1A is a schematic cross-sectional view of the semiconductor lightemitting device according to an embodiment of the disclosure.

FIG. 1B is a schematic top view of the semiconductor light emittingdevice in the embodiment of FIG. 1A.

FIG. 1C is a schematic cross-sectional view of the semiconductor lightemitting unit in the embodiment of FIG. 1A.

FIG. 2A is a schematic top view of the semiconductor light emittingdevice according to another embodiment of the disclosure.

FIG. 2B is a schematic isometric view of the area A of the semiconductorlight emitting device in the embodiment of FIG. 2A.

FIG. 3 is a schematic cross-sectional view of the semiconductor lightemitting device according to yet another embodiment of the disclosure.

FIG. 4 is a schematic cross-sectional view of the semiconductor lightemitting device according to yet another embodiment of the disclosure.

FIG. 5 is a schematic cross-sectional view of the semiconductor lightemitting device according to another embodiment of the disclosure.

FIG. 6 is a schematic cross-sectional view of the semiconductor lightemitting device according to yet another embodiment of the disclosure.

FIG. 7 is a schematic cross-sectional view of the semiconductor lightemitting device according to yet another embodiment of the disclosure.

FIG. 8A to FIG. 8H are schematic views showing a fabricating method ofthe semiconductor light emitting device according to another embodimentof the disclosure.

FIG. 9A to FIG. 9H are schematic views showing a fabricating method ofthe semiconductor light emitting device according to yet anotherembodiment of the disclosure.

DESCRIPTION OF THE EMBODIMENTS

FIG. 1A is a schematic cross-sectional view of a semiconductor lightemitting device according to an embodiment of the disclosure. FIG. 1B isa schematic top view of the semiconductor light emitting device in theembodiment of FIG. 1A. FIG. 1C is a schematic cross-sectional view of asemiconductor light emitting unit in the embodiment of FIG. 1A. Withreference to FIG. 1A, in this embodiment, a semiconductor light emittingdevice 100 includes a substrate 110, a plurality of semiconductor lightemitting units 120, and a plurality of non-conductive walls 140. Thesemiconductor light emitting units 120 have different emission colors.The semiconductor light emitting units 120 include a red semiconductorlight emitting unit, a green semiconductor light emitting unit, and ablue semiconductor light emitting unit. In addition, the semiconductorlight emitting units 120 may further include a yellow semiconductorlight emitting unit or semiconductor light emitting units of otherdifferent colors. In some embodiments, one single semiconductor lightemitting unit 120 may emit light of different colors. Nevertheless, thedisclosure is not limited thereto.

Next, referring to FIG. 1A and FIG. 1B, FIG. 1A is a schematiccross-sectional view of the semiconductor light emitting device 100 ofFIG. 1B taken along the dotted line L. In this embodiment, thesemiconductor light emitting units 120 are divided into semiconductorlight emitting units 120 a, 120 b, and 120 c that have differentemission colors. The semiconductor light emitting units 120 (120 a, 120b, and 120 c) are disposed on the substrate 110 to form an array. Inthis embodiment, a surface F of each of the semiconductor light emittingunits 120 on the side facing away from the substrate 110 is arranged onthe same horizontal plane P. The semiconductor light emitting units 120(120 a, 120 b, and 120 c) are light emitting diodes (LED), for example.The light emitting diodes 120 that have different colors may form pixelsof a micro-LED display for displaying a colored image, for example.Otherwise, the light emitting diodes 120 having different colors mayproject a colored image through projection. In some embodiments, thelight emitting diodes 120 having different colors may be arrangedproperly or the colors thereof may be selected, so as to achieve afull-color display or projection effect. Nevertheless, in some otherembodiments, the light emitting diodes may have the same color toachieve a single color effect. The disclosure here is not intended tolimit the choice of colors and arrangement of the semiconductor lightemitting units. The choice of colors of the semiconductor light emittingunits 120 and the arrangement of the semiconductor light emitting units120 on the substrate 110 may be varied according to differentrequirements of use, design specifications, and product positioning.

Then, referring to FIG. 1C, in this embodiment, each of thesemiconductor light emitting units 120 has a first electrode 122 and asecond electrode 124 opposite to each other. Moreover, the semiconductorlight emitting unit 120 further includes a semiconductor stack layer 126disposed between the first electrode 122 and the second electrode 124.The semiconductor stack layer 126 includes a first type semiconductorlayer 126 a, a light emitting layer 126 b, and a second typesemiconductor layer 126 c. The light emitting layer 126 b is disposedbetween the first type semiconductor layer 126 a and the second typesemiconductor layer 126 c. The first type semiconductor layer 126 a isdisposed between the first electrode 122 and the light emitting layer126 b. The second type semiconductor layer 126 c is disposed between thesecond electrode 124 and the light emitting layer 126 b. In thisembodiment, the semiconductor light emitting unit 120 is a lightemitting diode. The first type semiconductor layer 126 a is an N-typesemiconductor layer and the second type semiconductor layer 126 c is aP-type semiconductor layer. The first electrode 122 is an N electrodecorresponding to the N-type semiconductor layer and the second electrode124 is a P electrode corresponding to the P-type semiconductor layer.However, in some embodiments, the first type semiconductor layer 126 amay be a P-type semiconductor layer and the second type semiconductorlayer 126 c may be an N-type semiconductor layer. Accordingly, the firstelectrode 122 is a P electrode corresponding to the P-type semiconductorlayer and the second electrode 124 is an N electrode corresponding tothe N-type semiconductor layer. Nevertheless, the disclosure is notlimited thereto. The light emitting layer 126 b includes a multiplequantum well (MQW) structure. In some embodiments, the light emittinglayer 126 b may also include a quantum well (QW) structure or otherstructures. Besides, in some embodiments, the semiconductor lightemitting unit 120 further includes a protective layer (not shown). Theprotective layer covers the periphery of the semiconductor stack layer126, the first electrode 122, and the second electrode 124 in a mannerthat the first electrode 122 and the second electrode 124 of thesemiconductor light emitting unit 120 are exposed. The semiconductorlight emitting unit 120 is electrically connected to correspondingexternal electrodes through the exposed first electrode 122 and theexposed second electrode 124. The light emitting layer 126 b emits lightby a current applied from the corresponding external electrodes.

Referring to FIGS. 1A and 1C together, in this embodiment, the structureof the semiconductor light emitting unit 120 in the embodiment of FIG.1C also applies to the semiconductor light emitting units 120 a and 120b having different emission colors in FIG. 1A. The substrate 110includes a circuit structure 112 and a plurality of connectingconductors 114. Each connecting conductor 114 is disposed between onesemiconductor light emitting unit 120 (120 a or 120 b) and the circuitstructure 112. In addition, the first electrode 112 of eachsemiconductor light emitting unit 120 is electrically connected with thecircuit structure 112 of the substrate 110 through one connectingconductor 114, and the semiconductor light emitting units 120 areelectrically connected together to a conductive layer 130 through thesecond electrodes 124. Thus, the semiconductor light emitting units 120arranged in the array are driven by a current transmitted by the circuitstructure 112 and turned on. The semiconductor light emitting units 120emit light when being turned on, so as to achieve various effectsrequired, such as displaying or projecting an image. In this embodiment,the substrate 110 with the circuit structure 112 of different designsmay be a semiconductor substrate, a submount, a complementarymetal-oxide-semiconductor (CMOS) substrate, or a liquid crystal onsilicon (LCOS) substrate. A material of the connecting conductors 114includes a metal. In some embodiments, the material of the connectingconductors 114 may also include other conductive materials. Thedisclosure is not intended to limit the form of the substrate 110, thecircuit structure 112 corresponding to the substrate 110, and thematerial of the connecting conductors 114, which may be varied accordingto different requirements of use, design specifications, and productpositioning. Moreover, the substrate 110 further includes a plurality ofelectrode pads 116 (not shown). Each electrode pad 116 is disposedbetween one connecting conductor 114 and the circuit structure 112. Inthis embodiment, the connecting conductors 114 of the substrate 110electrically connect the first electrodes 122 and the circuit structure112 through the electrode pads 116.

With reference to FIG. 1A, in this embodiment, the conductive layer 130is disposed on the surfaces F of the semiconductor light emitting units120 on the side facing away from the substrate 110. Moreover, thesemiconductor light emitting device 100 further includes anon-conductive layer 150 disposed between the substrate 110 and theconductive layer 130 and between two adjacent semiconductor lightemitting units 120 (between the adjacent semiconductor light emittingunits 120 a and 120 b, for example). The non-conductive layer 150electrically isolates the circuit structure 112 of the substrate 110 andthe conductive layer 130. Therefore, the current transmitted by thecircuit structure 112 and the conductive layer 130 does not pass throughthe non-conductive layer 150, thereby preventing a short circuit in thesemiconductor light emitting device 100.

In this embodiment, the non-conductive walls 140 of the semiconductorlight emitting device 100 are disposed between the adjacentsemiconductor light emitting units 120 (between every two adjacentsemiconductor light emitting units 120, for example; the non-conductivewall 140 may be disposed between the adjacent semiconductor lightemitting units 120 a and 120 b, for example) for isolating thesemiconductor light emitting units 120. The non-conductive walls 140 maybe disposed in advance before the semiconductor light emitting units 120are disposed on the substrate 110. Each semiconductor light emittingunit 120 may be aligned with a space between the adjacent non-conductivewalls (between the every two adjacent non-conductive walls 140, forexample) and guided by the non-conductive walls 140 to be disposed inthe corresponding position. In other words, the semiconductor lightemitting unit 120 may be guided by the non-conductive walls 140 to bequickly disposed on the substrate 110 and more accurately aligned to thecorrect position. With the non-conductive walls 140, the semiconductorlight emitting device 100 may be fabricated through quick packaging andaccurate alignment.

Continuing to refer to FIG. 1, in this embodiment, the semiconductorlight emitting device 100 further includes a bonding layer 160 disposedbetween the semiconductor light emitting unit 120 and the correspondingconnecting conductor 114. A material of the bonding layer 160 includes aconductive material such as solder. The semiconductor light emittingunits 120 are bonded to or attached to the corresponding position on thesubstrate 110 through the bonding layer 160. In addition, thesemiconductor light emitting units 120 may maintain electricalconnection with the substrate 110 through the bonding layer 160.Nevertheless, in some embodiments, the material of the bonding layer 160may also include a non-conductive material. The semiconductor lightemitting units may maintain electrical connection with the substratethrough other elements.

In this embodiment, the semiconductor light emitting device 100 furtherincludes an insulating protective layer 170 disposed between thesubstrate 110 and the bonding layer 160. Moreover, each connectingconductor 114 has a connection area CA. Each first electrode 122 iselectrically connected with the substrate 110 through the connectionarea CA of one connecting conductor 114. The insulating protective layer170 covers the substrate 110 and areas other than the connection areasCA of the connecting conductors 114. The insulating protective layer 170may be a passivation layer in a semiconductor fabricating process. Inthis embodiment, the insulating protective layer 170 protects thecircuit structure 110 and partial areas of the connecting conductors114. Therefore, in the fabricating process of the semiconductor lightemitting device 100, the circuit structure 112 and the aforementionedareas are not easily damaged or contaminated by other fabricatingprocesses.

FIG. 2A is a schematic top view of the semiconductor light emittingdevice according to another embodiment of the disclosure. FIG. 2B is aschematic isometric view of an area A of the semiconductor lightemitting device in the embodiment of FIG. 2A. Referring to FIG. 2A andFIG. 2B, a semiconductor light emitting device 200 is similar to thesemiconductor light emitting device 100 of FIG. 1A. Components andfunctions thereof have been specified in the embodiment related to thesemiconductor light emitting device 100 of FIG. 1A and thus are notrepeated hereinafter. In this embodiment, in order to clearly presentthe shape and configuration of non-conductive walls 240, FIG. 2Aillustrates the configuration of semiconductor light emitting units 220and the non-conductive walls 240 on a substrate 210 in a simplifiedmanner. In FIG. 2A, at least the conductive layer, the non-conductivelayer, and the bonding layer are omitted from the semiconductor lightemitting device 100. Moreover, in order to clearly present theconnection area CA of a connecting conductor 214, the semiconductorlight emitting units 220 are omitted from FIG. 2B. In this embodiment,the non-conductive walls 240 are arranged and disposed on the substrate210 in a grid pattern. The non-conductive walls 240 and the substrate210 form a plurality of accommodating spaces S, and each semiconductorlight emitting unit 220 is disposed in one accommodating space S. Thegrid pattern may have various shapes, e.g., a rectangular grid pattern,a triangular grid pattern, or a polygonal grid pattern, but thedisclosure is not limited to the foregoing. In this embodiment, thesubstrate 210 and the circuit structure thereof are covered by aninsulating protective layer 270, and the areas other than the connectionarea CA of the connecting conductor 214 is also covered by theinsulating protective layer 270. Each semiconductor light emitting unit220 is disposed in the corresponding accommodating space S andelectrically connected with the circuit structure of the substrate 210through the connection area CA of the connecting conductor 214.

FIG. 3 is a schematic cross-sectional view of the semiconductor lightemitting device according to yet another embodiment of the disclosure.Referring to FIG. 3, in this embodiment, a semiconductor light emittingdevice 300 is similar to the semiconductor light emitting device 100 ofFIG. 1A. Components and functions thereof have been specified in theembodiment related to the semiconductor light emitting device 100 ofFIG. 1A and thus are not repeated hereinafter. A difference between thesemiconductor light emitting device 300 and the semiconductor lightemitting device 100 is that non-conductive walls 340 and a substrate 310of the semiconductor light emitting device 300 are formed integrally.That is, the non-conductive walls 340 and the substrate 310 areconnected with each other and include the same material. A fabricatingmethod for forming the non-conductive walls 340 and the substrate 310includes forming the non-conductive walls 340 in a grid pattern on asubstrate material by etching, for example.

FIG. 4 is a schematic cross-sectional view of the semiconductor lightemitting device according to yet another embodiment of the disclosure.Referring to FIG. 4, in this embodiment, a semiconductor light emittingdevice 400 is similar to the semiconductor light emitting device 100 ofFIG. 1A. Components and functions thereof have been specified in theembodiment related to the semiconductor light emitting device 100 ofFIG. 1A and thus are not repeated hereinafter. A difference between thesemiconductor light emitting device 400 and the semiconductor lightemitting device 100 is that semiconductor light emitting units 420 (420a and 420 b) of the semiconductor light emitting device 400 areconnected to a substrate 410 by adhering. A material of a bonding layer460 of the semiconductor light emitting device 400 may be an anisotropicconductive adhesive (ACA), an anisotropic conductive film (ACF), orother materials having both conductive and adhesive properties. Thesemiconductor light emitting units 420 may be adhered to the substrate410 through the bonding layer 460 and at the same time electricallyconnected with the substrate 410 through the bonding layer 460.Nevertheless, in some embodiments, the bonding layer 460 may not have aconductive property. The semiconductor light emitting units 420 may alsobe electrically connected with the substrate 410 through other elements.

FIG. 5 is a schematic cross-sectional view of the semiconductor lightemitting device according to another embodiment of the disclosure.Referring to FIG. 5, in this embodiment, a semiconductor light emittingdevice 500 is similar to the semiconductor light emitting device 400 ofFIG. 4. Components and functions thereof have been specified in theembodiment related to the semiconductor light emitting device 400 ofFIG. 4 and thus are not repeated hereinafter. A difference between thesemiconductor light emitting device 500 and the semiconductor lightemitting device 400 is that the semiconductor light emitting device 500further includes a plurality of conductive bumps 580. Each conductivebump 580 is disposed between a first electrode (not shown) and aconnecting conductor 514. Meanwhile, the first electrode (not shown) ofeach semiconductor light emitting unit 520 (520 a and 520 b) iselectrically connected with the corresponding connecting conductor 514through one conductive bump 580. Moreover, in this embodiment, amaterial of the bonding layer 560 includes a bonding adhesive material.The bonding adhesive material may be a non-conductive material.Therefore, each semiconductor light emitting unit 520 is notelectrically connected with the corresponding connecting conductor 514through the bonding layer 560. The material of the bonding layer 560 maybe a non-conductive adhesive (NCA), an adhesive layer formed of anultraviolet adhesive agent, an adhesive layer formed of an epoxyadhesive (AB glue), or other materials that have adhesive properties. Inaddition, the material of the bonding layer 560 may be an anisotropicconductive adhesive (ACA), an anisotropic conductive film (ACF), orother materials having both conductive and adhesive properties.Nevertheless, the disclosure is not limited thereto. The semiconductorlight emitting units 520 may be adhered to the substrate 510 through thebonding layer 560 and at the same time electrically connected with thesubstrate 410 through the conductive bumps 580. Furthermore, in someembodiments, the bonding layer 560 may have a conductive property. Eachsemiconductor light emitting unit 520 may be electrically connected withthe substrate 510 through both one conductive bump 580 and the bondinglayer 560 having a conductive property.

FIG. 6 is a schematic cross-sectional view of a semiconductor lightemitting device according to yet another embodiment of the disclosure.Referring to FIG. 6, in this embodiment, a semiconductor light emittingdevice 600 is similar to the semiconductor light emitting device 500 ofFIG. 5. Components and functions thereof have been specified in theembodiment related to the semiconductor light emitting device 500 ofFIG. 5 and thus are not repeated hereinafter. A difference between thesemiconductor light emitting device 600 and the semiconductor lightemitting device 500 is that a first electrode 622 of each semiconductorlight emitting unit 620 of the semiconductor light emitting device 600is bonded to a substrate 610 through eutectic bonding and electricallyconnected with the substrate 610. Each conductive bump 680 is disposedbetween the first electrode 620 of one semiconductor light emitting unit620 and the corresponding connecting conductor 614. The materials of thefirst electrode 622 and the conductive bump 680 may both be metals.Through heating, a eutectic reaction is generated between the firstelectrode 622 and the conductive bump 680 to achieve bonding. Theeutectic reaction includes liquid phase eutectic bonding or eutecticsolidification bonding. The material of the first electrode 622 may begold (Au) and the material of the conductive bump 680 may be tin (Sn),for example. Through heating, a eutectic reaction is generated betweenthe first electrode 622 and the conductive bump 680 to form anintermetallic compound (IMC) for bonding. In some embodiments, the firstelectrode 622 and the conductive bump 680 may include other materialssuitable for eutectic bonding. Nevertheless, the disclosure is notlimited thereto. Moreover, in some embodiments, the semiconductor lightemitting device may not include the conductive bump. The first electrodeis directly bonded to the connecting conductor through eutectic bonding,so as to bond and electrically connect the semiconductor light emittingunits to the substrate. In addition, each semiconductor light emittingunit 620 of the semiconductor light emitting device 600 is electricallyconnected together to the conductive layer 630 through the secondelectrode 624.

FIG. 7 is a schematic cross-sectional view of a semiconductor lightemitting device according to yet another embodiment of the disclosure.Referring to FIG. 7, in this embodiment, a semiconductor light emittingdevice 700 is similar to the semiconductor light emitting device 100 ofFIG. 1A. Components and functions thereof have been specified in theembodiment related to the semiconductor light emitting device 100 ofFIG. 1A and thus are not repeated hereinafter. A difference between thesemiconductor light emitting device 700 and the semiconductor lightemitting device 100 is that a thickness T of an insulating protectivelayer 770 of the semiconductor light emitting device 700 is greater thana thickness t of a connecting conductor 714. The insulating protectivelayer 770 and the connecting conductors 714 form a plurality of recessesH, each of the recesses H corresponds to the position of a semiconductorlight emitting unit 720 (720 a and 720 b). The insulating protectivelayer 770 between every two adjacent semiconductor light emitting units720 forms a non-conductive wall 740. The non-conductive walls 740 of thesemiconductor light emitting device 700 are formed by forming therecesses H on the insulating protective layer 770.

Since the semiconductor light emitting devices of FIG. 2A, FIG. 2B, FIG.3, FIG. 4, FIG. 5, FIG. 6, and FIG. 7 all have the non-conductive walls,the semiconductor light emitting units of the above embodiments may beguided by the non-conductive walls to be quickly disposed on thesubstrate and more accurately aligned to the correct positions. With thenon-conductive walls, the semiconductor light emitting device of theembodiments may be fabricated through quick packaging and accuratealignment.

FIG. 8A to FIG. 8H are schematic views showing a fabricating method ofthe semiconductor light emitting device according to another embodimentof the disclosure. Referring to FIG. 8A and FIG. 8B first, in thisembodiment, the fabricating method of the semiconductor light emittingdevice is at least applicable to the semiconductor light emitting device100 of the embodiment of FIG. 1A. Corresponding descriptions of thecomponents and electrical connection may be referred to the embodimentof FIG. 1A related to the semiconductor light emitting device 100. Inaddition, the fabricating method of the semiconductor light emittingdevice of this embodiment may be adjusted as appropriate to beapplicable to at least the semiconductor light emitting devices 200 to700 of the embodiments of FIG. 2A to FIG. 7. The fabricating method ofthe semiconductor light emitting device of this embodiment includesdisposing a plurality of non-conductive walls 840 on a substrate 810. Analignment position AP is formed between every two adjacentnon-conductive walls 840. In some embodiment, the non-conductive wallsare arranged and disposed on the substrate in a grid pattern. Thenon-conductive walls and the substrate form a plurality of accommodatingspaces, and each alignment position AP is located in one accommodatingspace. Descriptions concerning the corresponding components andelectrical connection may be referred to the embodiment of FIG. 2Arelated to the semiconductor light emitting device 200, and thus are notrepeated hereinafter. In some other embodiments, the fabricating methodof the semiconductor light emitting device further includes integrallyforming the substrate and the non-conductive walls. Descriptionsconcerning the corresponding components and electrical connection may bereferred to the semiconductor light emitting device 300 in theembodiment of FIG. 3, and thus are not repeated hereinafter.

The fabricating method of the semiconductor light emitting devicefurther includes foil ling a circuit structure (not shown) and aplurality of connecting conductors 814 on the substrate 810. Moreover, aplurality of electrode pads 816 are formed on the substrate 810. Each ofthe electrode pads 816 is correspondingly disposed between oneconnecting conductor 814 and the circuit structure (not shown). Then, aninsulating protective layer 870 covers the substrate 810, and coversareas other than the connection areas CA of the connecting conductors814. Then, a bonding layer 860 is formed between two adjacentnon-conductive walls 840. In this embodiment, the insulating protectivelayer 870 is located between the substrate 810 and the bonding layer860.

Besides, some embodiments of the fabricating method of the semiconductorlight emitting device further include forming a plurality of conductivebumps, and each conductive bump is located on one connecting conductor814. Descriptions concerning the corresponding components and electricalconnection may be referred to the embodiment of FIG. 5 related to thesemiconductor light emitting device 500 and the embodiment of FIG. 6related to the semiconductor light emitting device 600, and thus are notrepeated hereinafter.

Besides, in some embodiments of the fabricating method of thesemiconductor light emitting device, the bonding layer may be formed ofa material having both conductive and adhesive properties. Descriptionsconcerning the corresponding components and electrical connection may bereferred to the embodiment of FIG. 4 the semiconductor light emittingdevice 400, and thus are not repeated hereinafter.

Then, referring to FIG. 8C, a plurality of semiconductor light emittingunits 820 a (820) on a first carrier board CB1 are respectively alignedto the alignment positions AP. In this embodiment, the semiconductorlight emitting units 820 a on the first carrier board CB1 arerespectively aligned to the alignment positions AP by using an alignmenttool AT. The semiconductor light emitting units 820 a are divided into aplurality of groups. For example, the semiconductor light emitting units820 a indicated with arrows in FIG. 8C are set as a group, and othersemiconductor light emitting units 820 a are set as another group. Inother embodiments of the disclosure, the groups may be set according todifferent needs. Besides, the semiconductor light emitting units 820a(820) may be red light emitting diodes, green light emitting diodes,blue light emitting diodes, or light emitting diodes of other colors.The disclosure is not limited thereto.

Referring to FIG. 8D, the semiconductor light emitting units 820 a (820)of one of the groups are disassociated from the first carrier board CB1.Therefore, the semiconductor light emitting units 820 a (i.e., thesemiconductor light emitting units 820 a indicated by the arrows in FIG.8C) included by the group on the first carrier board CB1 fall into thecorresponding alignment positions AP due to gravity. The semiconductorlight emitting units 820 fall into the corresponding alignment positionsAP through guidance of the alignment tool AT. For example, the alignmenttool AT includes a mesh plate, a steel plate, a plate having a pluralityof alignment holes, or the like which may be employed. The alignmenttool AT includes a plurality of openings O corresponding to positions ofthe semiconductor light emitting units 820 a of the group on the firstcarrier board CB1. By performing a laser lift-off process, for example,the semiconductor light emitting units 820 a of the group on the firstcarrier board CB1 are dissociated from the first carrier board CB1.Then, by using the alignment tool AT, the dissociated semiconductorlight emitting units 820 are guided to fall into the correspondingalignment positions AP.

Then, referring to FIG. 8E, a plurality of semiconductor light emittingunits 820 b (820) on a second carrier board CB2 are respectively alignedto the alignment positions AP by using the alignment tool AT. Thesemiconductor light emitting diodes 820 b on the second carrier boardCB2 are divided into a plurality of groups. For example, thesemiconductor light emitting units 820 b indicated with arrows in FIG.8E are set as a group, while other semiconductor light emitting units820 b are set as another group. In other embodiments of the disclosure,the groups may be set according to different needs. In this embodiment,the semiconductor light emitting units 820 b on the second carrier boardCB2 and the semiconductor light emitting units 820 a on the firstcarrier board CB1 have different emission colors. Besides, the alignmentpositions AP that the semiconductor light emitting units 820 b on thesecond carrier board CB2 correspond to are different from the alignmentpositions AP that the semiconductor light emitting units 820 a on thefirst carrier board CB1 correspond to.

Then, referring to FIGS. 8E and 8F together, the semiconductor lightemitting units 820 b (820) of one of the groups on the second carrierboard CB2 are dissociated from the second carrier board CB2. Thus, thesemiconductor light emitting units 820 b (i.e., the semiconductor lightemitting units 820 b indicated with the arrows in FIG. 8E) of the groupon the second carrier board CB2 fall into the corresponding alignmentpositions AP due to gravity.

After the semiconductor light emitting units 820 a of the group on thefirst carrier board CB1 are dissociated from the first carrier board CB1and fall into the corresponding alignment positions AP, the firstcarrier board CB1 is removed. Then, the semiconductor light emittingunits 820 b (820) on the second carrier board CB2 are aligned to thealignment positions AP. Besides, a position of the alignment tool AT isadjusted by, for example, horizontally moving the alignment tool AP adistance, making the openings O of the alignment tool AT correspond tothe positions of the semiconductor light emitting units 820 b in thegroup on the second carrier board CB2. Then, in the same way of thesemiconductor light emitting units 820 a, the semiconductor lightemitting units 820 b of the group on the second carrier board CB2 aredissociated from the second carrier board CB2 and fall into thecorresponding alignment positions AP.

Besides, some embodiments may further include a third carrier board (notshown). By adopting the same way that makes the semiconductor lightemitting units 820 b of the chosen group on the second carrier board CB2fall into the corresponding alignment positions AP in this embodiment,the semiconductor light emitting units 820 in the chosen group on thethird carrier board (not shown) also fall into the correspondingalignment positions AP. In this embodiment, the semiconductor lightemitting units 820 on the carrier boards fall into the correspondingalignment positions AP according to the above process. Thus, thesemiconductor light emitting units having different emission colors(e.g., the semiconductor light emitting units 820 a and 820 b havingdifferent emission colors) are disposed on the substrate 810. In someembodiments, the semiconductor light emitting units 820 having differentcolors may be light emitting diodes having different colors. The lightemitting diodes of different colors may be arranged properly or thecolors thereof may be selected to achieve a full-color display orprojection effect.

In this embodiment, the alignment tool AT has the openings Ocorresponding to the positions of the semiconductor light emitting units820. Thus, in the fabricating method of the semiconductor light emittingdevice, the dissociated semiconductor light emitting units 820 may beprevented from being dissociated and falling into incorrect alignmentpositions AP, or the semiconductor light emitting units 820 that shouldnot be dissociated may be prevented from being dissociated and falling.In this way, the accuracy and speed of aligning and disposing thesemiconductor light emitting units 820 on the substrate 810 areincreased.

Referring to FIGS. 8G and 8H, then, each semiconductor light emittingunit 820 (820 a and 820 b) is electrically connected with the substrate810. In this embodiment, each connecting conductor 814 is disposedbetween one semiconductor light emitting unit 820 and the circuitstructure (not shown) of the substrate 810. The fabricating method ofthe semiconductor light emitting device of this embodiment furtherincludes forming the electrode pads 816 on the substrate 810. Thus,through the electrode pads 816, the connecting conductors 814 makes thefirst electrodes (not shown) of the semiconductor light emitting units820 electrically connected with the circuit structure (not shown) of thesubstrate 810. The semiconductor light emitting units 820 areelectrically connected with the substrate 810 by applying a pressure tothe side of the semiconductor light emitting units 820 facing away fromthe substrate 810. For example, by applying a pressure to the side ofthe semiconductor light emitting units 820 facing away from thesubstrate 810 by using a pressing member f, the surfaces F of thesemiconductor light emitting units 820 on the side facing away from thesubstrate 810 are located on the same horizontal plane P. Meanwhile, inother embodiments of the disclosure, the semiconductor light emittingdevices 800 may also be heated when exerting the pressure, so as toreinforce the bonding property and make the semiconductor light emittingunits 820 electrically connected with the substrate 810.

In some embodiments, the process of electrically connecting thesemiconductor light emitting units 820 to the substrate 810 through thefirst electrodes (not shown) further includes heating the semiconductorlight emitting device 800 to bond the first electrodes (not shown) ofthe semiconductor light emitting units 820 on the substrate 810 througheutectic bonding and electrically connect the substrate 810.

Then, a non-conductive layer 850 is disposed. By performing a polishingprocess, the second electrodes (not shown) of the semiconductor lightemitting units 820 that are at the top are exposed. The non-conductivelayer 850 is disposed between two adjacent light emitting units 820. Forexample, the non-conductive layer 850 is disposed between every twoadjacent semiconductor light emitting units 820. In addition, aconductive layer 830 is disposed in a way that the conductive layer 830is located above the non-conductive layer 850 and the semiconductorlight emitting units 820. Therefore, the non-conductive layer 850 isdisposed between the substrate 810 and the conductive layer 830. Thenon-conductive layer 850 electrically isolates the substrate 810 and theconductive layer 830. In addition, the fabricating method of thesemiconductor light emitting device in this embodiment further includeselectrically connecting the semiconductor light emitting units 820together to the conductive layer 830 through the second electrodes (notshown) of the semiconductor light emitting units 820.

Besides, some embodiments of the fabricating method of the semiconductorlight emitting device further include making a thickness of theinsulating protective layer greater than those of the connectingconductors, and the insulating protective layer and the connectingconductors form a plurality of holes. Each hole corresponds to onealignment position, and the insulating protective layer between twoadjacent semiconductor light emitting units forms a non-conductive wall.Descriptions concerning the corresponding components and electricalconnection may be referred to the embodiment of FIG. 7 the semiconductorlight emitting device 700, and thus are not repeated hereinafter.

FIG. 9A to FIG. 9H are schematic views showing a fabricating method ofthe semiconductor light emitting device according to yet anotherembodiment of the disclosure. The fabricating method of thesemiconductor light emitting device of this embodiment is similar to thefabricating method of the semiconductor light emitting device in theembodiment of FIGS. 8A to 8H. In other words, a semiconductor lightemitting device 900 is also similar to the semiconductor light emittingdevice 800. Description and components corresponding to thesemiconductor light emitting device 900 and the fabricating methodthereof may be referred to the embodiment of FIGS. 8A to 8H related tothe semiconductor light emitting device 800 and the fabricating methodthereof, and are thus not repeated hereinafter. Compared with theembodiment of FIGS. 8A to 8H, the fabricating method of thesemiconductor light emitting device of FIGS. 9A to 9H further includes amagnetic device MD disposed on one side of a substrate 910, as shown inFIGS. 9A and 9B. In this embodiment, the magnetic device MD may be amagnet, such as a permanent magnet, an electromagnet, or other devicesor films having a magnetic force. In addition, the method of thisembodiment includes disposing a plurality of non-conductive walls 940 onthe substrate 910 on the other side opposite to the magnetic device MD.The alignment position AP is formed between every two adjacentnon-conductive walls 940. Then, referring to FIG. 9C, a plurality ofsemiconductor light emitting units 920 a (920) on the first carrierboard CB1 are respectively aligned to the alignment positions AP byusing the alignment tool AT. In addition, the semiconductor lightemitting units 820 a on the first carrier board CB1 are divided into aplurality of groups.

Then, referring to FIG. 9D, the semiconductor light emitting units 920 a(920) in one of the groups on the first carrier board CB1 aredissociated from the first carrier board CB1. Then, the semiconductorlight emitting units 920 a (i.e., the semiconductor light emitting units920 a indicated with arrows in FIG. 9C) of the group on the firstcarrier board CB1 and the magnetic device MD magnetically attract eachother. Thus, the semiconductor light emitting devices 920 a fall intothe corresponding alignment positions AP through guidance of thealignment tool AT and functioning of a magnetic force. To make thesemiconductor light emitting units 920 a magnetically sensitive, amagnetic film (not shown) may be additionally disposed on thesemiconductor light emitting units 920 a. Through functioning of amagnetic field, the semiconductor light emitting units 920 a becomemagnetically sensitive. Thus, the semiconductor light emitting units 920a and the magnetic device MD may attract each other, thereby increasinga momentum when the semiconductor light emitting units 920 a are alignedto and fall into the alignment positions AP.

Then, referring to FIG. 9E, a plurality of semiconductor light emittingunits 920 b (920) on the second carrier board CB2 are respectivelyaligned to the alignment positions AP by using the alignment tool AT.The semiconductor light emitting diodes 920 b on the second carrierboard CB2 are divided into a plurality of groups. In this embodiment,the semiconductor light emitting units 920 b on the second carrier boardCB2 and the semiconductor light emitting units 920 a on the firstcarrier board CB1 have different emission colors. Besides, the alignmentpositions AP that the semiconductor light emitting units 920 b on thesecond carrier board CB2 correspond to are different from the alignmentpositions AP that the semiconductor light emitting units 920 a on thefirst carrier board CB1 correspond to.

Referring to FIGS. 9E and 9F together, the semiconductor light emittingunits 920 b (920) in one of the groups on the second carrier board CB2are dissociated from the second carrier board CB2. In this way, thesemiconductor light emitting units 920 b (i.e., the semiconductor lightemitting units 920B indicated with arrows in FIG. 9E) of the group onthe second carrier board CB2 and the magnetic device MD may magneticallyattract each other, making the semiconductor light emitting units 920 bfall into the corresponding alignment positions AP. The way that makesthe semiconductor light emitting units 920 b magnetically sensitive mayalso follow the way that makes the semiconductor light emitting units920 a magnetically sensitive. By adding a magnetic film (not shown) tothe semiconductor light emitting units 920 b and making thesemiconductor light emitting units 920 b magnetically sensitive throughfunctioning of a magnetic field, the semiconductor light emitting units920 b and the magnetic device MD may attract each other, such that thesemiconductor light emitting units 920 b fall into the alignmentpositions AP.

Next, referring to FIGS. 9G and 9H, each semiconductor light emittingunit 920 (920 a and 920 b) is electrically connected with the substrate910 through the first electrode. In addition, a conductive layer 930 isdisposed on the semiconductor light emitting units 920. In this way, thesemiconductor light emitting units 920 are electrically connectedtogether to the conductive layer 930 through the second electrodes (notshown) of the semiconductor light emitting units 920. Relevantdescription concerning other components and layers in the semiconductorlight emitting device 900 in the embodiment of FIGS. 9A to 9H may bereferred to the semiconductor light emitting device 800 in theembodiment of FIGS. 8A to 8H and other embodiments extended therefrom.In addition, the fabricating method of the layers and components inFIGS. 9A to 9H may be referred to the fabricating method in theembodiment of FIGS. 8A to 8H and other embodiments extended therefrom.

Based on above, in the semiconductor light emitting device according tothe embodiments of the disclosure, the non-conductive walls are disposedbetween adjacent semiconductor light emitting units to isolate thesemiconductor light emitting units. Therefore, the semiconductor lightemitting device may be fabricated through quick packaging and accuratealignment. Besides, the fabricating method of the semiconductor lightemitting device according to the embodiments of the disclosure includesdisposing the non-conductive walls on the substrate and forming thealignment position between every two adjacent non-conductive walls.Then, by making use of gravity or having the semiconductor lightemitting device and the magnetic device magnetically attract each other,the semiconductor light emitting units fall into the correspondingalignment positions. In this way, the fabricating method of thesemiconductor light emitting device achieves quick packaging andaccurate alignment.

It will be apparent to those skilled in the art that variousmodifications and variations can be made to the structure of thedisclosed embodiments without departing from the scope or spirit of thedisclosure. In view of the foregoing, it is intended that the disclosurecover modifications and variations of this disclosure provided they fallwithin the scope of the following claims and their equivalents.

What is claimed is:
 1. A semiconductor light emitting device,comprising: a substrate; a plurality of semiconductor light emittingunits, disposed on the substrate to form an array, wherein each of thesemiconductor light emitting units has a first electrode and a secondelectrode opposite to each other, each of the semiconductor lightemitting units is electrically connected with the substrate through thefirst electrode, the semiconductor light emitting units are electricallyconnected together to a conductive layer through the second electrodes,and the semiconductor light emitting units have different emissioncolors; and a plurality of non-conductive walls, disposed between theadjacent semiconductor light emitting units to isolate the semiconductorlight emitting units.
 2. The semiconductor light emitting device asclaimed in claim 1, wherein the non-conductive walls are arranged on thesubstrate in a grid pattern, the non-conductive walls and the substrateform a plurality of accommodating spaces, and each of the semiconductorlight emitting units is disposed in one of the accommodating spaces. 3.The semiconductor light emitting device as claimed in claim 1, furthercomprising a non-conductive layer, disposed between the substrate andthe conductive layer and between two adjacent semiconductor lightemitting units, wherein the non-conductive layer electrically isolatesthe substrate and the conductive layer.
 4. The semiconductor lightemitting device as claimed in claim 1, wherein the semiconductor lightemitting units comprise a red semiconductor light emitting unit, a greensemiconductor light emitting unit, and a blue semiconductor lightemitting unit.
 5. The semiconductor light emitting device as claimed inclaim 1, wherein the substrate comprises a circuit structure and aplurality of connecting conductors, each of the connecting conductors iscorrespondingly disposed between one of the semiconductor light emittingunits and the circuit structure, and each of the first electrodes iselectrically connected with the circuit structure through one of theconnecting conductors.
 6. The semiconductor light emitting device asclaimed in claim 5, wherein the substrate further comprises a pluralityof electrode pads, each of the electrode pads is correspondinglydisposed between one of the connecting conductors and the circuitstructure, and the connecting conductors electrically connect the firstelectrodes and the circuit structure through the electrode pads.
 7. Thesemiconductor light emitting device as claimed in claim 5, wherein amaterial of the connecting conductors comprises a metal.
 8. Thesemiconductor light emitting device as claimed in claim 5, furthercomprising a bonding layer disposed between the semiconductor lightemitting unit and the corresponding connecting conductor.
 9. Thesemiconductor light emitting device as claimed in claim 8, furthercomprising an insulating protective layer, disposed between thesubstrate and the bonding layer, wherein each of the connectingconductors has a connecting area, each of the first electrodes iselectrically connected with the substrate through the connecting area ofone of the connecting conductors, and the insulating protective layercovers the substrate and areas other than the connecting areas.
 10. Thesemiconductor light emitting device as claimed in claim 9, wherein theinsulating protective layer and the connecting conductors form aplurality of holes, a thickness of the insulating protective layer isgreater than those of the connecting conductors, each of the holescorresponds to a position of one of the semiconductor light emittingunits, and the insulating protective layer between two adjacentsemiconductor light emitting units forms the non-conductive walls. 11.The semiconductor light emitting device as claimed in claim 8, wherein amaterial of the bonding layer comprises a conductive material.
 12. Thesemiconductor light emitting device as claimed in claim 1, wherein thefirst electrode of each of the semiconductor light emitting units isbonded to the substrate through eutectic bonding, and is electricallyconnected with the substrate.
 13. The semiconductor light emittingdevice as claimed in claim 1, wherein surfaces of the semiconductorlight emitting units on a side facing away from the substrate arelocated on a same horizontal plane.
 14. The semiconductor light emittingdevice as claimed in claim 8, further comprising a plurality ofconductive bumps, wherein each of the conductive bumps iscorrespondingly disposed between one of the first electrodes and theconnecting conductor, and each of the first electrodes is electricallyconnected with the connecting conductor through one of the conductivebumps.
 15. The semiconductor light emitting device as claimed in claim14, wherein a material of the bonding layer comprises a non-conductivematerial.
 16. The semiconductor light emitting device as claimed inclaim 1, wherein the semiconductor light emitting unit further comprisesa semiconductor stack layer disposed between the first electrode and thesecond electrode, and the light semiconductor light emitting units arelight emitting diodes.
 17. A fabricating method of a semiconductor lightemitting device, comprising: disposing a plurality of non-conductivewalls on a substrate and forming an alignment position between every twoadjacent non-conductive walls; aligning a plurality of semiconductorlight emitting units on a first carrier board to the alignmentpositions, wherein the semiconductor light emitting units are dividedinto a plurality of groups; dissociating the semiconductor lightemitting units in one of the groups from the first carrier board, suchthat the semiconductor light emitting units in the group fall into thecorresponding alignment positions due to gravity; electricallyconnecting each of the semiconductor light emitting units with thesubstrate through a first electrode; and forming a conductive layer onthe semiconductor light emitting units, such that the semiconductorlight emitting units are electrically connected together to theconductive layer through second electrodes.
 18. The fabricating methodof the semiconductor light emitting device as claimed in claim 17,further comprising: respectively aligning a plurality of semiconductorlight emitting units on a second carrier board to the alignmentpositions, wherein the semiconductor light emitting units on the secondcarrier board and the semiconductor light emitting units on the firstcarrier board have different emission colors, and the semiconductorlight emitting units on the second carrier board are divided into aplurality of groups; and dissociating the semiconductor light emittingunits in one of the groups of the second carrier board from the secondcarrier board, such that the semiconductor light emitting units in thegroup fall into the corresponding alignment positions due to gravity.19. The fabricating method of the semiconductor light emitting device asclaimed in claim 17, wherein the non-conductive walls are arranged onthe substrate in a grid pattern, the non-conductive walls and thesubstrate form a plurality of accommodating spaces, and each of thealignment positions is in one of the accommodating spaces.
 20. Thefabricating method of the semiconductor light emitting device as claimedin claim 17, further comprising: forming a non-conductive layer betweenthe substrate and the conductive layer and between the two adjacentsemiconductor light emitting units, wherein the non-conductive layerelectrically isolates the substrate and the conductive layer.
 21. Thefabricating method of the semiconductor light emitting device as claimedin claim 17, wherein the semiconductor light emitting units arerespectively aligned to the alignment positions by using an alignmenttool, and the semiconductor light emitting units are guided by thealignment tool to fall into the corresponding alignment positions. 22.The fabricating method of the semiconductor light emitting device asclaimed in claim 21, wherein the alignment tool comprises a mesh plateor a steel plate or a plate having a plurality of alignment holes. 23.The fabricating method of the semiconductor light emitting device asclaimed in claim 17, wherein the semiconductor light emitting units aredissociated from the first carrier board by performing a laser lift-offprocess.
 24. The fabricating method of the semiconductor light emittingdevice as claimed in claim 17, further comprising integrally forming thesubstrate and the non-conductive walls.
 25. The fabricating method ofthe semiconductor light emitting device as claimed in claim 17, whereinthe semiconductor light emitting units comprise a red semiconductorlight emitting unit, a green semiconductor light emitting unit, and ablue semiconductor light emitting unit.
 26. The fabricating method ofthe semiconductor light emitting device as claimed in claim 17, furthercomprising: forming a circuit structure and a plurality of connectingconductors on the substrate, wherein each of the connecting conductorsis correspondingly disposed between one of the semiconductor lightemitting units and the circuit structure; and electrically connectingeach of the first electrodes with the circuit structure through one ofthe connecting conductors.
 27. The fabricating method of thesemiconductor light emitting device as claimed in claim 26, furthercomprising: forming a plurality of electrode pads on the substrate,wherein each of the electrode pads is correspondingly disposed betweenone of the connecting conductors and the circuit structure; and makingthe connecting conductors electrically connect the first electrodes andthe circuit structure through the electrode pads.
 28. The fabricatingmethod of the semiconductor light emitting device as claimed in claim26, wherein a material of the connecting conductors comprises a metal.29. The fabricating method of the semiconductor light emitting device asclaimed in claim 26, further comprising forming a bonding layer disposedbetween the semiconductor light emitting unit and the correspondingconnecting conductor.
 30. The fabricating method of the semiconductorlight emitting device as claimed in claim 29, further comprising:forming an insulating protective layer between the substrate and thebonding layer; and electrically connecting each of the first electrodeswith the substrate through a connecting area of one of the connectingconductors, wherein the insulating protective layer covers the substrateand areas other than the connecting areas.
 31. The fabricating method ofthe semiconductor light emitting device as claimed in claim 30, whereinthe step of disposing the non-conductive walls on the substrate andforming the alignment position between every two adjacent non-conductivewalls further comprises: making the insulating protective layer and theconnecting conductors form a plurality of holes, wherein a thickness ofthe insulating protective layer is greater than those of the connectingconductors, each of the holes corresponds to one of the alignmentpositions, and the insulating protective layer between the two adjacentsemiconductor light emitting units form the non-conductive walls. 32.The fabricating method of the semiconductor light emitting device asclaimed in claim 29, wherein a material of the bonding layer comprises aconductive material.
 33. The fabricating method of the semiconductorlight emitting device as claimed in claim 17, the step of electricallyconnecting each of the semiconductor light emitting units with thesubstrate through the first electrode further comprises: heating thesemiconductor light emitting device, such that the first electrode ofthe semiconductor light emitting unit is bonded to the substrate througheutectic bonding, and electrically connected with the substrate.
 34. Thefabricating method of the semiconductor light emitting device as claimedin claim 17, further comprising: applying a pressure to a side of thesemiconductor light emitting units facing away from the substrate, suchthat surfaces of the semiconductor light emitting units on a side facingaway from the substrate are on a same horizontal plane.
 35. Thefabricating method of the semiconductor light emitting device as claimedin claim 29, further comprising: forming a plurality of conductivebumps, wherein each of the conductive bumps is disposed between one ofthe first electrodes and one of the connecting conductors; and makingeach of the first electrodes electrically connected with the one of theconnecting conductors through one of the conductive bumps.
 36. Thefabricating method of the semiconductor light emitting device as claimedin claim 35, wherein a material of the bonding layer comprises anon-conductive material.
 37. The fabricating method of the semiconductorlight emitting device as claimed in claim 17, wherein the semiconductorlight emitting unit further comprises a semiconductor stack layerdisposed between the first electrode and the second electrode, and thelight semiconductor light emitting unit is a light emitting diode.
 38. Afabricating method of a semiconductor light emitting device, comprising:disposing a magnetic device on a side of a substrate; disposing aplurality of non-conductive walls on the other side of the substrateopposite to the magnetic device and forming an alignment positionbetween every two adjacent non-conductive walls; aligning a plurality ofsemiconductor light emitting units on a first carrier board to thealignment positions, wherein the semiconductor light emitting units aredivided into a plurality of groups; dissociating the semiconductor lightemitting units in one of the groups from the first carrier board, suchthat the semiconductor light emitting units of the group and themagnetic device magnetically attract each other, making thesemiconductor light emitting units fall into the corresponding alignmentpositions; electrically connecting each of the semiconductor lightemitting units with the substrate through a first electrode; and forminga conductive layer on the semiconductor light emitting units, such thatthe semiconductor light emitting units are electrically connectedtogether to the conductive layer through second electrodes.
 39. Thefabricating method of the semiconductor light emitting device as claimedin claim 38, further comprising: respectively aligning a plurality ofsemiconductor light emitting units on a second carrier board to thealignment positions, wherein the semiconductor light emitting units onthe second carrier board and the semiconductor light emitting units onthe first carrier board have different emission colors, and thesemiconductor light emitting units on the second carrier board aredivided into a plurality of groups; and dissociating the semiconductorlight emitting units in one of the groups of the second carrier boardfrom the second carrier board, such that the semiconductor lightemitting units of the group and the magnetic device magnetically attracteach other, making the semiconductor light emitting units of the groupfall into the corresponding alignment positions.
 40. The fabricatingmethod of the semiconductor light emitting device as claimed in claim38, wherein the magnetic device comprises a magnet, and the magnetcomprises a permanent magnet or an electromagnet.
 41. The fabricatingmethod of the semiconductor light emitting device as claimed in claim38, wherein the non-conductive walls are arranged on the substrate in agrid pattern, the non-conductive walls and the substrate form aplurality of accommodating spaces, and each of the alignment positionsis in one of the accommodating spaces.
 42. The fabricating method of thesemiconductor light emitting device as claimed in claim 38, furthercomprising: forming a non-conductive layer between the substrate and theconductive layer and between the two adjacent semiconductor lightemitting units, wherein the non-conductive layer electrically isolatesthe substrate and the conductive layer.
 43. The fabricating method ofthe semiconductor light emitting device as claimed in claim 38, whereinthe semiconductor light emitting units are respectively aligned to thealignment positions by using an alignment tool, and the semiconductorlight emitting units are guided by the alignment tool to fall into thecorresponding alignment positions.
 44. The fabricating method of thesemiconductor light emitting device as claimed in claim 43, wherein thealignment tool comprises a mesh plate or a steel plate or a plate havinga plurality of alignment holes.
 45. The fabricating method of thesemiconductor light emitting device as claimed in claim 38, furthercomprising: forming a circuit structure and a plurality of connectingconductors on the substrate, wherein each of the connecting conductorsis correspondingly disposed between one of the semiconductor lightemitting units and the circuit structure; and electrically connectingeach of the first electrodes with the circuit structure through one ofthe connecting conductors.
 46. The fabricating method of thesemiconductor light emitting device as claimed in claim 45, furthercomprising: forming a plurality of electrode pads on the substrate,wherein each of the electrode pads is correspondingly disposed betweenone of the connecting conductors and the circuit structure; and makingthe connecting conductors electrically connect the first electrodes andthe circuit structure through the electrode pads.
 47. The fabricatingmethod of the semiconductor light emitting device as claimed in claim45, further comprising forming a bonding layer disposed between thesemiconductor light emitting unit and the corresponding connectingconductor.
 48. The fabricating method of the semiconductor lightemitting device as claimed in claim 47, further comprising: forming aninsulating protective layer between the substrate and the bonding layer;and electrically connecting each of the first electrodes with thesubstrate through a connecting area of one of the connecting conductors,wherein the insulating protective layer covers the substrate and areasother than the connecting areas.
 49. The fabricating method of thesemiconductor light emitting device as claimed in claim 38, the step ofelectrically connecting each of the semiconductor light emitting unitswith the substrate through the first electrode further comprises:heating the semiconductor light emitting device, such that the firstelectrode of the semiconductor light emitting unit is bonded to thesubstrate through eutectic bonding, and electrically connected with thesubstrate.
 50. The fabricating method of the semiconductor lightemitting device as claimed in claim 38, wherein the semiconductor lightemitting unit further comprises a semiconductor stack layer disposedbetween the first electrode and the second electrode, and the lightsemiconductor light emitting units are light emitting diodes.